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采用冷挤压工艺生产表壳是解决异型表壳花色品种翻新和降低成本的主要途径之一,是我国表壳生产今后发展的主要趋势,但过去冷挤压表壳钢料全靠进口,国内不能生产。目前上海钢铁工艺技术研究所和上海钢铁研究所开发研制的低锰易切削表壳用不锈钢填补了这一国内空白,该钢种已在85年10月于西安获鉴定通过。该低锰易切削不锈钢经西安手表厂等单位批量使用,认为其有易挤压、易切削、易
The use of cold extrusion process is to solve the case of non-standard case color varieties to reduce the cost of renovation and one of the main ways is the future development of China’s case the main trend of development, but in the past cold extrusion of steel depends entirely on imported steel, domestic Can not produce At present, Shanghai Institute of Iron and Steel Technology and Shanghai Institute of Iron and Steel developed low-manganese free-cutting case with stainless steel to fill the gap in the country, the steel has been in Xi’an in October 85 was identified through the appraisal. The low-manganese stainless steel cutting by Xi’an Watch Factory and other units in batches, that it is easy to squeeze, easy cutting, easy